ICD-10-PCS 2027 procedure code
079980ZDrainage of Left Internal Mammary Lymphatic with Drainage Device, Via Natural or Artificial Opening Endoscopic
Short description: Drainage of Int Mamm, L Lymph with Drain Dev, Endo
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 079980Z
079980Z is the ICD-10-PCS code for a drainage procedure on the left lymphatic, internal mammary using a via natural or artificial opening endoscopic approach with drainage device. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.
In plain terms, this corresponds to other miscellaneous procedures, the ICD-9-CM procedure title it maps to (99.99).
For a different body part, codes include 079080Z (lymphatic, head), 079180Z (lymphatic, right neck), 079280Z (lymphatic, left neck), 079380Z (lymphatic, right upper extremity), 079480Z (lymphatic, left upper extremity), 079580Z (lymphatic, right axillary) and 12 more.
The same procedure with a different approach is coded 079900Z (open), 079930Z (percutaneous) and 079940Z (percutaneous endoscopic).
With a different device, use 07998ZZ (no device).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
It was added in FY2018, effective October 1, 2017.
What each character means
- 1. Section
- 0Medical and Surgical
- 2. Body System
- 7Lymphatic and Hemic Systems
- 3. Operation
- 9Drainage
Taking or letting out fluids and/or gases from a body part
The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies
Includes: Thoracentesis, incision and drainage
- 4. Body Part
- 9Lymphatic, Internal Mammary, Left
- 5. Approach
- 8Via Natural or Artificial Opening Endoscopic
Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure
- 6. Device
- 0Drainage Device
Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 079080ZLymphatic, Head
- 079180ZLymphatic, Right Neck
- 079280ZLymphatic, Left Neck
- 079380ZLymphatic, Right Upper Extremity
- 079480ZLymphatic, Left Upper Extremity
- 079580ZLymphatic, Right Axillary
- 079680ZLymphatic, Left Axillary
- 079780ZLymphatic, Thorax
- 079880ZLymphatic, Internal Mammary, Right
- 079B80ZLymphatic, Mesenteric
- 079C80ZLymphatic, Pelvis
- 079D80ZLymphatic, Aortic
Different approach
Different device
ICD-9-CM equivalent
Converter →- 99.99Other miscellaneous proceduresapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2018 (effective 10/1/2017): Added
- No changes since FY2018.
Common questions about 079980Z
Is 079980Z a valid ICD-10-PCS code for 2027?
- Yes. 079980Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 079980Z?
- The CMS GEMs map 079980Z to ICD-9-CM 99.99 (Other miscellaneous procedures).